Editor’s Note: This story, citing a shocking New York Times report, appeared today on CNN.com.

(CNN) — Forensic tests have found the blood of Michael Brown on the gun, uniform and police cruiser belonging to Officer Darren Wilson, who fatally shot the unarmed teen two months ago in Ferguson, Missouri, The New York Times reported.

The revelation, provided by unnamed government officials familiar with a federal civil rights investigation, marked the first public account of Wilson’s testimony to investigators.

That it could potentially serve as exculpatory evidence — or at the very least, used by Wilson’s supporters to back the officer’s account of what transpired on Canfield Drive on August 9 — immediately drew suspicion and anger from leading activists who portended an ominous reaction from Brown supporters.

Angela Whitman, a Ferguson resident who was among activists meeting with U.S. Attorney General Eric Holder there in August, found the newspaper account of Wilson’s testimony “so hard to believe.”